Re: Principles of pinning
Joseph, you will rarely see much skill on "Cops". You will occasionally see an officer who is highly skilled, but most often they simply aren't. The average law enforcement officer was trained in his academy how to do a limited number of techniques, with very little training regarding the principles that make the techniques effective, while they are taught the principles of law relating to use of force. After the academy they might get a refresher every few years if they are lucky. As a result, even those who were superb in their basic training lose the skills over the years. By contrast martial artists practice their skills frequently and spend a lot of time developing the underlying principles.
You are also correct in what I would describe as "Mixed Martial Messages" in these situations. It is difficult at best to comply with instructions to surrender your arms when you have several officers placing body weight on your torso for example, and the struggle just goes on. Aikido pins aren't perfect either, but they do provide a foundation for good pins during arrest and control situations.
I still believe that a strong background in aikido would be beneficial to law enforcement officers across the country IF they would be willing to practice their skills. Therein lies the rub. Perishable skills simply deteriorate without practice. That is one of the great benefits of the Koga Method. Koga Sensei's material is the foundation of defensive tactics training in most agencies here in California and the basis for state required training. Simple competence is enough and a great degree of skill or athleticism isn't necessary.....but it has to be practiced. If not, you have interesting TV, but poor police practice.